Evaluation of antibiofilm and catalytic activity of biogenic silver nanoparticles synthesized from Acacia nilotica leaf extract



Biofilm are the serious health issue that is arising due to modernisation in health care device and lifestyle. The biofilm resistant towards antibiotics even at higher concentration due to the protective covering that enable unavailability of antibiotic towards bacteria residing inside and causing serious healthcare issues. Thus, to combat these, biogenic silver nanoparticles of spherical shape were synthesized having potential against biofilm forming bacteria. Here, we focused on the green synthesis owing to its inherent features such as simplicity, eco-friendliness, cheap rate and rapidity. Herein, we have synthesized AgNPs using the aqueous extract of Acacia nilotica leaf. The bioactive compounds present in the extract are responsible for the reduction of Ag+ to Ag0. The synthesis conditions were optimized using critical parameters and the optimized one was then characterized via UV-vis spectroscopy, dynamic light scattering (DLS), transmission electron microscopy (TEM), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). Further, synthesized AgNPs were used to evaluate strong antibacterial activity and catalytic potential that was assessed against degradation of anthropogenic pollutant and azo dyes methylene blue (MB) and congo red (CR).


Green synthesis; Silver nanoparticles; antibacterial activity; catalytic potential

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Published by: IOP Publishing and Vietnam Academy of Science and Technology
Frequency: Articles appear online as they are published with print copies published 4 times per year
ISSN: Print: 2043-6254; Online: 2043-6262
DOI Range: 10.1088/issn.2043-6262

© Copyright 2016 Advances in Natural Sciences: Nanoscience and Nanotechnology